Window-sash attachment.



P. BARNUM. WINDOW SASH ATTACHMENT. A PPLIGA1 ION FILED JULY 22, 1912.

Patented June 16, 1914:.

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WITNESSES: INVIQNTOR P. BARN UM. WINDOW SASH ATTACHMENT.

APPLICATION FILED JULY 22, 1912. 7 1 1 ()Q 342 Patented June 16, 1914.

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1N VENTOR WITNES SES ate frame isinstalled in the building, pivot frame inwardly.

T he bolt 11 is also provided with a washer I or collar 12, between which and the shoe the i spring pressure is exerted.

Fig. 6 is a side elevation of a friction shoe, showing that this has considerable bearing surface in the circular groove, and by placing a suflieiently strong spring, as 10, bctween the shoe and the collar 12, sufficient friction and tension is created to hold the Window sash in any position. It is obvious that the friction shoes may be connected to the lower portion of the sash, so that the upper portion of the sash may be tilted in or out, or,'as shown at let, the upper portion of the sash may be connected to the friction shoes.

- Fig. 7 shows the method of mounting the frame A when it is desired to tilt the window It has been customary heretofore to in'- stall sashes of a .similar design into the window frame direct, without the use of an intermediate frame. By the employment of the intermediate frame, all'work of attaching the sash-carrying arms, pivots, etc, is done in the factory, and the sashes and shoes are dressed down to a'uniforrn thickness and inserted in the frame. After the intermedi- 7 iS taken out and a longer one, as 15, is inserted, thereby fastening the whole securely in the permanent building frame. The circular channels in the sides of the intermediate frame may be plugged, as at 1'6,'to form suitable bearings for the pivots 7. -l'n Fig. 1 is shown a slight modification of the construction and mounting of'the upper sash'2. This construction is particularly adapted for transoms and like places or to produce the so called burglanproof window. The lower portion of the sash is secured to'the pivots 1'. in the sides of the frame} while the upper'portiori of the sash is'free to swing into the room, being hung or carried by arms 6 secured to a sliding member 18, which in turn is supported in friction shoes. This'memb'er extends across the window frame and is mounted to slide up or down, .as the window is opened or closed about its-pivots l7, and forms a cross bar over the window opening which will prevent the entrance of imdesirablc persons.

It will also be understood that a. sash, as 3,

shown in Fig. 2, may be completely reversed in the window frame by rocking the sash into the horizontal position and then depressing the end which is connected to the frictiim shoes until the sash is reversed. This makes it possible to reverse the window, which is very desirable and convenient when it is desired to wash the window.

The windowis neat in appearance, prompt and reliable in its actions, and takes no more space than the ordinary window. The materials and finish of the several parts of the window are such as experience and judgment of the manufacturer may dictate.

I wish it understood that various changes in form, proportions and minor details of construction may he resorted to Within the scope of the appended claims and that I do not wish to limit myself to the specific design and construction here shown.

Having thus described my invention, what I claim and desire to secure by Letters Patent isi 1. The combination with a, Window frame, of a sash pivotally mounted and carried at one end by a pair of friction shoes slidably mounted. in semicircular grooves formed in the sides of the frame, grooves on the sash stiles, and arms pivotally connected at. their lower upper ends to the sash, which are adapted to fold into the grooves in the sash stiles when the sash is closed.

2. The combination with window frame, of a sashv pivotally mounted and carried at onocnd hya pair of friction shoes slidahly mounted in semicircular grooves formed in the sides of the frame, semicircular grooves formed in the sash stile, and bowed semicircular spring arms pivotaily' connected at their lower ends to the side frames, and at their upper ends to the sash, whichare adaptedto snapinto the semicircular grooves in the sash stiles when the sash is closed to retain the window in a. closed position. j

In testimony whereof I have hereunto set my hand in the pgesence of two subscribing witnesses.

PAUL BARNUM. Witnesses:

W. W. HEALEY, G. M. PAGE.

ends to the side frames, and at their 

